[Untitled]

Authors :: E.K. Legin
Yu. V. Kuznetsov
Yu. I. Trifonov
E. E. Legina
M. L. Khokhlov
D. N. Suglobov
Source :: Radiochemistry. 43:197-202
Publication Year :: 2001
Publisher :: Springer Science and Business Media LLC, 2001.
Abstract: It is demonstrated in model experiments that in the presence of Ca ions (typomorphous cations of water of the Yenisei River) fulvic acids of floodplain soils and associated radionuclides (Am, Eu) form poorly soluble mixed Ca, Fe, Al(Am, Eu) fulvates. As a result, under the flooding conditions the migration of Am and Eu in the form of solubilized organomineral complexes is practically totally suppressed. With decreasing pH in the model system from 8 to 6 the mobility of the radionuclides noticeably increases.